This year marks the 70th anniversary of the liberation of the concentration camps. This Sunday, Jews from across the region will gather to remember and honor those who died. David Levine chairs the local Holocaust Remembrance Day, held at a synagogue in Skokie. Joining him is Henry Jelen, the co-chair of Yom HaShoah ceremony. They talk about the event, and the challenges of keeping history alive as the survivors pass away. (Flickr/slgckgc)